Martin Lewis has warned homeowners about a simple task that if left incomplete could lead to a fine of £1,000.
The Money Saving Expert was on BBC 5 live radio revealing some of his latest tips.
On the show, he highlighted the importance of filling out a simple form, or risking a heavy sanction.
He said: “Many people between July and November get sent a Household Enquiry form.
"This is a form from the council right across the country. It’s effectively asking you to check whether the right people in your household are registered to vote.”
But homeowners may mistake the form for junk mail, said Martin, which in turn could lead to a fine if there are changes in the household and it hasn’t been communicated, the Express reports .
He continued: “Now if you don’t deal with that properly - check and tell them the difference - there can be a thousand pound fine.
"It’s rare but the problem with this form is that I always think it looks like junk mail.
"This is just a note that if you get the Household enquiry form or you’ve got it or you’ve had it and you’ve thrown it away, you do need to check that it’s right."
Martin advised households that if they’re bothered about receiving junk mail, they can opt out.
He added: “People often get confused and think that they get junk mail because they’re on the electoral register.
"Now there’s a separate thing called The Open Register, where companies can market to you. You can opt out of the Open Register.
"It will not affect your credit file and you won’t get the junk mail, but you will still be registered to vote."
